CVE-2026-22777: ComfyUI-Manager is Vulnerable to CRLF Injection in Configuration Handler

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-01-10 · updated 2026-06-17
Weakness: CWE-93

Description

ComfyUI-Manager is an extension designed to enhance the usability of ComfyUI. Prior to versions 3.39.2 and 4.0.5, an attacker can inject special characters into HTTP query parameters to add arbitrary configuration values to the config.ini file. This can lead to security setting tampering or modification of application behavior. This issue has been patched in versions 3.39.2 and 4.0.5.

Affected products

Comfy-Org ComfyUI-Manager: before 3.39.2; from 4.0.3 before 4.0.5 — fixed in 3.39.2, 4.0.5

How to fix

Upgrade to a fixed version: Comfy-Org ComfyUI-Manager 3.39.2, 4.0.5. Check the vendor advisory for mitigations.

References

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